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Thread: Check engine light came on

  1. #16
    CavemanB52's Avatar
    CavemanB52 is offline Cadillac Owners Connoisseur
    Automobile(s): 2012 CTSV coupe
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    Hey big jim what is a 327 elm bluetooth dongle


  2. #17
    USAFRET is offline Cadillac Owners Fanatic
    Automobile(s): 2011 CTS-V Coupe A6 w/RECARO's
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    Re: Check engine light came on

    Quote Originally Posted by CavemanB52 View Post
    Hey big jim what is a 327 elm bluetooth dongle
    I know several Corvette buddies with these gizmo's. Streams cars info from the ODBII port to your BT phone, even allows codes to be read and cleared via the phone.

    When they work, they are marvelous.

  3. #18
    Chosenone is offline Cadillac Owners Member
    Automobile(s): 09 CTS V
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    Re: Check engine light came on

    Well the check engine light came on again. It just about 3 months for it to come back on. I went down and had the code reset again and it came back on within 5 days. Any thoughts or ideas? Dirty MAF, or should I finally just bite the bullet and take it to a repair shop?

  4. #19
    CavemanB52's Avatar
    CavemanB52 is offline Cadillac Owners Connoisseur
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    What was the code for. It might be the type of gas. I had that problem with the gas out west. Didnt like the low octane. Could only find 91. I bought a Diablo Trinity. I can now see the code and explaination of what it is. Clear it myself if its benign. Pretty handy and a relief to see it was just crapy gas and not something serious. I've found that if I use Chevron it doesn't throw the code anymore even though I always use TopTier gasoline. And obviously the highest octane available.

  5. #20
    montgb is offline Cadillac Owners Member
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    Re: Check engine light came on

    Does no one use Google? P0174 means A/F mixture is running too lean. I would swap the the Hennessy CAI for stock and see if that clears things up.

    Also, is your Borla cat-back or axle-back?

  6. #21
    Chosenone is offline Cadillac Owners Member
    Automobile(s): 09 CTS V
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    Re: Check engine light came on

    Let me add this, so the light came back on Sunday afternoon. I went to work that is about 10 miles away and parked car for the whole day. Went home Monday night, remote started my car and no check engine light anymore. It hasnt came on since and I have driven my car 4 times since then and hasnt come back on yet. Why would the light go off when I did nothing to adjust whatever made it come on in the first place. Also I do run the premium grade gas but I do live on West Coast and no gas even premium can be bad sometimes. I have the Borla Cat Back Exhaust

  7. #22
    Join Date
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    Re: Check engine light came on

    Quote Originally Posted by Chosenone View Post
    Let me add this, so the light came back on Sunday afternoon. I went to work that is about 10 miles away and parked car for the whole day. Went home Monday night, remote started my car and no check engine light anymore. It hasnt came on since and I have driven my car 4 times since then and hasnt come back on yet. Why would the light go off when I did nothing to adjust whatever made it come on in the first place. Also I do run the premium grade gas but I do live on West Coast and no gas even premium can be bad sometimes. I have the Borla Cat Back Exhaust
    Hello Chosenone,

    I apologize that your check engine light has come on again. If you do decide to take your CTS-V to a dealership and would like my assistance, please message me and I would be happy to speak to the dealership on your behalf. Thank you for taking the time to read my post.

    Gregory W.
    Cadillac Customer Care

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